Home / 36,403.54-54,607.78-12,378.06

Finding the Fourth Proportional to 36,403.54, 54,607.78 and 12,378.06

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Solution

The fourth proportional to 36,403.54, 54,607.78 and 12,378.06 is: 18,567.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,403.54 : 54,607.78 = 12,378.06 : x
  2. Step 2: Convert to fraction form
    36,403.54/54,607.78 = 12,378.06/x
  3. Step 3: Cross multiply
    36,403.54x = 54,607.78 × 12,378.06
  4. Step 4: Simplify right side
    36,403.54x = 675,938,377.31
  5. Step 5: Solve for x
    x = 675,938,377.31/36,403.54
  6. Step 6: Final answer
    x = 18,567.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.